EP 0830208 B1 20000726 - METHOD OF DEPRESSING NON-SULFIDE SILICATE GANGUE MINERALS
Title (en)
METHOD OF DEPRESSING NON-SULFIDE SILICATE GANGUE MINERALS
Title (de)
VERFAHREN ZUM DRÜCKEN NICHTSULFIDISCHER SILIKATISCHER GANGARTEN
Title (fr)
METHODE DE DEPRESSION DE GANGUES POUR SEPARER DES SILICATES NON SULFURES
Publication
Application
Priority
- US 9606477 W 19960507
- US 47480595 A 19950607
- US 47516095 A 19950607
Abstract (en)
[origin: WO9640438A1] A method for the depression of non-sulfide, silicate gangue minerals is provided wherein the depressant is either (1) a polymeric material comprising recurring units of the formula: -[-X-]-x -[-Y-]-y -[-Z-]-z wherein X is the polymerization residue of an acrylamide or mixture of acrylamides, Y is an hydroxy group containing polymer unit, Z is an anionic group containing polymer unit, x represents a residual mole fraction of at least about 35 %, y represents a residual mole fraction of from about 1 to 50 % and z represents a residual mole fraction of from about 0 to about 50 %, or (2) a mixture of said polymer and a polysaccharide.
IPC 1-7
IPC 8 full level
B03D 1/016 (2006.01); B03D 101/06 (2006.01)
CPC (source: EP)
B03D 1/016 (2013.01); B03D 1/008 (2013.01); B03D 1/01 (2013.01); B03D 2201/02 (2013.01); B03D 2201/06 (2013.01); B03D 2203/02 (2013.01)
Citation (examination)
- US 4902764 A 19900220 - ROTHENBERG ALAN S [US], et al
- US 4220525 A 19800902 - PETROVICH VOJISLAV [US]
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9640438 A1 19961219; AT E194929 T1 20000815; AU 5733196 A 19961230; AU 701180 B2 19990121; BG 102109 A 19980630; BG 62123 B1 19990331; BR 9608582 A 19981229; CA 2222996 A1 19961219; CA 2222996 C 20080429; CN 1096299 C 20021218; CN 1186456 A 19980701; DE 69609507 D1 20000831; DE 69609507 T2 20010111; DK 0830208 T3 20001120; EP 0830208 A1 19980325; EP 0830208 B1 20000726; ES 2150672 T3 20001201; OA 10548 A 20020530; PL 180674 B1 20010330; PL 323856 A1 19980427; PT 830208 E 20001229; RU 2139147 C1 19991010
DOCDB simple family (application)
US 9606477 W 19960507; AT 96915589 T 19960507; AU 5733196 A 19960507; BG 10210997 A 19971211; BR 9608582 A 19960507; CA 2222996 A 19960507; CN 96194444 A 19960507; DE 69609507 T 19960507; DK 96915589 T 19960507; EP 96915589 A 19960507; ES 96915589 T 19960507; OA 70155 A 19971205; PL 32385696 A 19960507; PT 96915589 T 19960507; RU 98100189 A 19960507